I was wondering if anyone knew of any good books that teach or discuss various different techniques of playing Bass. I would really appreciate it, thanks.

Any particular techniques you want to learn? Check out Bass Books (http://www.bassbooks.com), they have a wide variety to choose from.

Off to technique!

If you want to learn playing techniques for different music styles, Sean Malone´s Dictionary of bass grooves is a good book to learn some basics. www.seanmalone.net/Purchase/Products/BassGrooves
Check it out.

I like You Can Teach Yourself Electric Bass, Mel Bay / Electric Bass Method 1/2 again Mel Bay /and Bass Guitar Scale Manual, Amsco Pub.